CHDR Blog
Blog
Notes from building products and client work: process, decisions, technical detail.
B2B client portal: how to organize documents, communication and statuses in one place
A B2B client portal keeps documents, communication and delivery statuses in one place. See when it makes sense, which features matter in MVP, and how to avoid expensive process chaos.
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Online booking system: which features are actually needed in the first version
An online booking system does not need to start as a complex platform. The first version should focus on availability, a clear booking flow, confirmations and a practical admin panel.
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API contract: how to write a spec that speeds up development
A practical guide to writing API contracts and specifications that accelerate development and reduce integration rework.
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Taking over an app after another vendor: checklist, risks, quick wins
A practical app takeover framework: stabilize first, map risks, deliver quick wins, and execute a 30/60/90 maintenance plan.
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SEO without spam: how to write structured articles that actually help
A practical guide to writing SEO content without spam: intent-first structure, publication checklist, and quality metrics.
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Payments integration: webhooks, retries, edge cases and how to avoid production pain
A practical guide to payment integrations: webhook reliability, retry strategy, idempotency, edge cases, and production readiness checklists.
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48h Tech Audit: what you get and how to decide what to fix next
A 48h tech audit delivers a decision-ready view of technical risk and a practical 30/60/90 action plan for faster, safer product decisions.
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Rescue Sprint: when a project needs rescuing and how we do it step by step
A Rescue Sprint is a focused recovery mode for software projects in trouble, restoring delivery control through rapid diagnosis, stabilization, and measurable execution planning.
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MVP without chaos: MUST/SHOULD/LATER and how to freeze scope for 2 weeks
A practical MUST/SHOULD/LATER model and 2-week scope-freeze rules: checklists, “done” definitions, and trade-offs that ship MVPs.
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Website vs Web app – what’s the difference?
In the tech world, the concepts of a website and a web application are often confused and used interchangeably, but they actually differ in several important ways. Do you want to know how these two solutions really differ? Below you will find a detailed explanation. 1. Website – what is it?
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